forked from Minki/linux
crypto: tcrypt - add test_acipher_speed
Add test_acipher_speed for testing async block ciphers. Also include tests for aes/des/des3/ede as these appear to have ablk_cipher implementations available. Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Jussi Kivilinna
Herbert Xu
parent
9d25917d49
commit
3f3baf359d
250
crypto/tcrypt.c
250
crypto/tcrypt.c
@ -719,6 +719,207 @@ out:
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crypto_free_ahash(tfm);
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}
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static inline int do_one_acipher_op(struct ablkcipher_request *req, int ret)
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{
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if (ret == -EINPROGRESS || ret == -EBUSY) {
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struct tcrypt_result *tr = req->base.data;
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ret = wait_for_completion_interruptible(&tr->completion);
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if (!ret)
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ret = tr->err;
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INIT_COMPLETION(tr->completion);
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}
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return ret;
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}
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static int test_acipher_jiffies(struct ablkcipher_request *req, int enc,
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int blen, int sec)
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{
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unsigned long start, end;
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int bcount;
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int ret;
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for (start = jiffies, end = start + sec * HZ, bcount = 0;
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time_before(jiffies, end); bcount++) {
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if (enc)
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ret = do_one_acipher_op(req,
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crypto_ablkcipher_encrypt(req));
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else
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ret = do_one_acipher_op(req,
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crypto_ablkcipher_decrypt(req));
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if (ret)
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return ret;
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}
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pr_cont("%d operations in %d seconds (%ld bytes)\n",
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bcount, sec, (long)bcount * blen);
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return 0;
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}
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static int test_acipher_cycles(struct ablkcipher_request *req, int enc,
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int blen)
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{
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unsigned long cycles = 0;
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int ret = 0;
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int i;
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/* Warm-up run. */
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for (i = 0; i < 4; i++) {
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if (enc)
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ret = do_one_acipher_op(req,
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crypto_ablkcipher_encrypt(req));
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else
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ret = do_one_acipher_op(req,
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crypto_ablkcipher_decrypt(req));
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if (ret)
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goto out;
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}
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/* The real thing. */
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for (i = 0; i < 8; i++) {
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cycles_t start, end;
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start = get_cycles();
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if (enc)
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ret = do_one_acipher_op(req,
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crypto_ablkcipher_encrypt(req));
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else
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ret = do_one_acipher_op(req,
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crypto_ablkcipher_decrypt(req));
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end = get_cycles();
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if (ret)
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goto out;
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cycles += end - start;
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}
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out:
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if (ret == 0)
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pr_cont("1 operation in %lu cycles (%d bytes)\n",
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(cycles + 4) / 8, blen);
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return ret;
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}
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static void test_acipher_speed(const char *algo, int enc, unsigned int sec,
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struct cipher_speed_template *template,
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unsigned int tcount, u8 *keysize)
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{
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unsigned int ret, i, j, iv_len;
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struct tcrypt_result tresult;
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const char *key;
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char iv[128];
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struct ablkcipher_request *req;
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struct crypto_ablkcipher *tfm;
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const char *e;
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u32 *b_size;
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if (enc == ENCRYPT)
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e = "encryption";
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else
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e = "decryption";
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pr_info("\ntesting speed of async %s %s\n", algo, e);
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init_completion(&tresult.completion);
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tfm = crypto_alloc_ablkcipher(algo, 0, 0);
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if (IS_ERR(tfm)) {
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pr_err("failed to load transform for %s: %ld\n", algo,
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PTR_ERR(tfm));
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return;
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}
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req = ablkcipher_request_alloc(tfm, GFP_KERNEL);
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if (!req) {
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pr_err("tcrypt: skcipher: Failed to allocate request for %s\n",
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algo);
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goto out;
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}
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ablkcipher_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG,
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tcrypt_complete, &tresult);
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i = 0;
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do {
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b_size = block_sizes;
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do {
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struct scatterlist sg[TVMEMSIZE];
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if ((*keysize + *b_size) > TVMEMSIZE * PAGE_SIZE) {
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pr_err("template (%u) too big for "
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"tvmem (%lu)\n", *keysize + *b_size,
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TVMEMSIZE * PAGE_SIZE);
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goto out_free_req;
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}
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pr_info("test %u (%d bit key, %d byte blocks): ", i,
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*keysize * 8, *b_size);
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memset(tvmem[0], 0xff, PAGE_SIZE);
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/* set key, plain text and IV */
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key = tvmem[0];
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for (j = 0; j < tcount; j++) {
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if (template[j].klen == *keysize) {
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key = template[j].key;
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break;
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}
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}
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crypto_ablkcipher_clear_flags(tfm, ~0);
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ret = crypto_ablkcipher_setkey(tfm, key, *keysize);
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if (ret) {
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pr_err("setkey() failed flags=%x\n",
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crypto_ablkcipher_get_flags(tfm));
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goto out_free_req;
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}
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sg_init_table(sg, TVMEMSIZE);
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sg_set_buf(sg, tvmem[0] + *keysize,
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PAGE_SIZE - *keysize);
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for (j = 1; j < TVMEMSIZE; j++) {
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sg_set_buf(sg + j, tvmem[j], PAGE_SIZE);
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memset(tvmem[j], 0xff, PAGE_SIZE);
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}
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iv_len = crypto_ablkcipher_ivsize(tfm);
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if (iv_len)
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memset(&iv, 0xff, iv_len);
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ablkcipher_request_set_crypt(req, sg, sg, *b_size, iv);
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if (sec)
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ret = test_acipher_jiffies(req, enc,
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*b_size, sec);
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else
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ret = test_acipher_cycles(req, enc,
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*b_size);
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if (ret) {
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pr_err("%s() failed flags=%x\n", e,
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crypto_ablkcipher_get_flags(tfm));
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break;
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}
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b_size++;
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i++;
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} while (*b_size);
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keysize++;
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} while (*keysize);
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out_free_req:
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ablkcipher_request_free(req);
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out:
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crypto_free_ablkcipher(tfm);
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}
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static void test_available(void)
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{
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char **name = check;
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@ -1243,6 +1444,55 @@ static int do_test(int m)
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case 499:
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break;
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case 500:
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test_acipher_speed("ecb(aes)", ENCRYPT, sec, NULL, 0,
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speed_template_16_24_32);
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test_acipher_speed("ecb(aes)", DECRYPT, sec, NULL, 0,
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speed_template_16_24_32);
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test_acipher_speed("cbc(aes)", ENCRYPT, sec, NULL, 0,
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speed_template_16_24_32);
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test_acipher_speed("cbc(aes)", DECRYPT, sec, NULL, 0,
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speed_template_16_24_32);
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test_acipher_speed("lrw(aes)", ENCRYPT, sec, NULL, 0,
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speed_template_32_40_48);
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test_acipher_speed("lrw(aes)", DECRYPT, sec, NULL, 0,
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speed_template_32_40_48);
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test_acipher_speed("xts(aes)", ENCRYPT, sec, NULL, 0,
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speed_template_32_48_64);
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test_acipher_speed("xts(aes)", DECRYPT, sec, NULL, 0,
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speed_template_32_48_64);
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test_acipher_speed("ctr(aes)", ENCRYPT, sec, NULL, 0,
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speed_template_16_24_32);
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test_acipher_speed("ctr(aes)", DECRYPT, sec, NULL, 0,
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speed_template_16_24_32);
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break;
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case 501:
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test_acipher_speed("ecb(des3_ede)", ENCRYPT, sec,
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des3_speed_template, DES3_SPEED_VECTORS,
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speed_template_24);
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test_acipher_speed("ecb(des3_ede)", DECRYPT, sec,
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des3_speed_template, DES3_SPEED_VECTORS,
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speed_template_24);
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test_acipher_speed("cbc(des3_ede)", ENCRYPT, sec,
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des3_speed_template, DES3_SPEED_VECTORS,
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speed_template_24);
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test_acipher_speed("cbc(des3_ede)", DECRYPT, sec,
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des3_speed_template, DES3_SPEED_VECTORS,
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speed_template_24);
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break;
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case 502:
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test_acipher_speed("ecb(des)", ENCRYPT, sec, NULL, 0,
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speed_template_8);
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test_acipher_speed("ecb(des)", DECRYPT, sec, NULL, 0,
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speed_template_8);
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test_acipher_speed("cbc(des)", ENCRYPT, sec, NULL, 0,
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speed_template_8);
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test_acipher_speed("cbc(des)", DECRYPT, sec, NULL, 0,
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speed_template_8);
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break;
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case 1000:
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test_available();
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break;
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